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    3.
    发明专利
    未知

    公开(公告)号：DE50113842D1

    公开(公告)日：2008-05-29

    申请号：DE50113842

    申请日：2001-01-08

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： PROKSA ROLAND

    IPC: A61B6/03

    Abstract: The invention relates to a method of forming a scannogram for a computed tomography apparatus. During the acquisition of the measured values for the scannogram, the scanning unit or the radiation source rotates about the examination zone and a 3D data set is reconstructed from the measured values acquired during the acquisition. A synthetic projection image which acts as the scannogram can be calculated from such a 3D data set.

    6.
    发明专利
    未知

    公开(公告)号：DE50205398D1

    公开(公告)日：2006-02-02

    申请号：DE50205398

    申请日：2002-04-30

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： GRASS DR ,  KOEHLER DR ,  PROKSA ROLAND

    IPC: A61B6/03 ,  G06T11/00

    Abstract: The device has a scanning unit, a drive arrangement and a unit for reconstructing a CT image corresponding to the spatial distribution of absorption in an investigation region from measurement data acquired by a detector unit (16) in a first measurement window (163,164). Data derived from beams in a second measurement window (161,162) inside the first window are used with different weightings from the measurement data outside the second window but inside the first window. An Independent claim is also included for a computer tomogram for the reconstruction unit of a computer tomograph.

    8.
    发明专利
    未知

    公开(公告)号：DE10162768A1

    公开(公告)日：2003-07-03

    申请号：DE10162768

    申请日：2001-12-20

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： PROKSA ROLAND

    IPC: G01T1/161 ,  A61B6/00 ,  A61B6/03 ,  A61B5/00

    Abstract: Computer tomograph has a conical radiation beam that is moved in a helical examination path with a significant overlapping between the individual helices of the examination path. In order to select the best data from amongst the redundant data, a heat movement detection and signaling device is provided. The recorded CT data is correlated with the movement data and the data selected from the times at which there was minimum heart movement. An Independent claim is made for a CT method for recording and selecting CT data so that data is chosen corresponding to the periods of minimum heart movement.

    EVENT SHARING RESTORATION FOR PHOTON COUNTING DETECTORS
    9.
    发明申请
    EVENT SHARING RESTORATION FOR PHOTON COUNTING DETECTORS 审中-公开
    光子计数探测器的事件共享恢复

    公开(公告)号：WO2008093275A3

    公开(公告)日：2008-11-06

    申请号：PCT/IB2008050294

    申请日：2008-01-28

    Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  PROKSA ROLAND

    Inventor： PROKSA ROLAND

    IPC: G01T1/29

    CPC classification number: G01T1/2928 ,  A61B6/027

    Abstract: Photon counting detectors may suffer from pulse sharing effects and fluorescence photon generation, which may lead to a degradation of the measured signals. According to an exemplary embodiment of the present invention, a detector unit is provided which is adapted for performing a coincidence detection and correction by comparing detection events of neighbouring cells, thereby providing for a coincidence identification followed by an individual coincidence correction. In order to reduce the number of coincidence detection and corresponding units per detector unit, a specific detector cell geometry may be applied.

    Abstract translation: 光子计数检测器可能受到脉冲共享效应和荧光光子产生的影响，这可能导致测量信号的退化。 根据本发明的示例性实施例，提供了一种检测器单元，其适于通过比较相邻单元的检测事件来执行一致性检测和校正，由此提供重合识别，随后进行单独重合校正。 为了减少每个检测器单元的重合检测和对应单元的数量，可以应用特定的检测器单元几何形状。

    CT IMAGING SYSTEM
    10.
    发明申请
    CT IMAGING SYSTEM 审中-公开
    CT成像系统

    公开(公告)号：WO2008068674A2

    公开(公告)日：2008-06-12

    申请号：PCT/IB2007054834

    申请日：2007-11-29

    Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  PROKSA ROLAND

    Inventor： PROKSA ROLAND

    IPC: A61B6/00

    CPC classification number: A61B6/504 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/481 ,  A61B6/482 ,  A61B6/507 ,  Y10S378/901

    Abstract: The invention relates to a CT imaging system for determining the flow of a substance within an object, wherein the CT imaging system comprises a polychromatic X-ray source and an energy-resolving X-ray detector for obtaining detection signals depending on the X-ray radiation after passing through the object. A calculation unit (12) determines a k-edge 5 component of the substance from the detection signals, and a reconstruction unit (13) reconstructs a time series of k-edge image from the determined k-edge component. A flow determination unit (14) determines flow values indicative for the flow within the object from the time series of k-edge images.

    Abstract translation: 本发明涉及一种用于确定物体内物质流动的CT成像系统，其中CT成像系统包括多色X射线源和能量分辨X射线检测器，用于根据X射线获得检测信号 穿过物体后的辐射。 计算单元（12）根据检测信号确定物质的k边缘5分量，重建单元（13）根据确定的k边缘分量重构k边缘图像的时间序列。 流量确定单元（14）根据k边缘图像的时间序列确定指示对象内的流动的流量值。

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